aspcol.soundfieldcontrol

Functions

acc(Rb, Rd[, reg])	Frequency-domain acoustic contrast control for sound zone control
acc_time(Rb, Rd[, reg_param])	Time domain acoustic contrast control
acc_time_all_zones(R[, reg_param])	Time-domain acoustic contrast control for all zones
apply_power_vec(w, p)	w is (num_freq, num_zones, num_sources), or (num_zones, bf_len)
beamformer_vec_to_ir(bf_vec, num_ls)	Transforms a beamformer vector into a shape more appropriate for a filter impulse response
extract_power_vec(w)	Opposite of apply_power_vec This function takes a non-unit-vector w and returns a unit vector w_norm along with the power p such that apply_power_vec(w_norm, p) = w
fpaths_to_spatial_cov(arrays, fpaths, ...)	utility function to be used with aspsim package.
freq_to_time_beamformer(w, num_freqs)	Tranforms a frequency domain beamformer / control filter to a time domain impulse response
normalize_beamformer(w)	Normalizes the beamformer vector w_k
normalize_system(R, noise_pow)	Normalize spatial covariance matrix by noise powers to get
paths_to_spatial_cov(arrays, source_name, ...)	utility function to be used with aspsim package.
paths_to_spatial_cov_delta(arrays, ...)	utility function to be used with aspsim package.
power_alloc_qos_downlink(w, R, noise_pow, ...)
pressure_matching_sa(Hv, Hc)	Frequency domain pressure matching to generate loudspeaker signals from virtual source signals
pressure_matching_szc(Rb, Rd, rb, mu[, reg])	Frequency-domain pressure matching for sound zone control
rir_to_szc_cov(rir, ctrlfilt_len)	Takes room impulse responses and computes a spatial covariance matrix for sound zone control
solve_power_weighted_qos_uplink(R, ...[, ...])	Calculates a control filter and power allocation that solves the signal-weighted uplink Quality of Service problem in the time-domain
spatial_cov(ir, source, filt_len, num_samples)	Computes time-domain spatial covariance matrix from room impulse responses
spatial_cov_delta(ir, filt_len)	Calculates the spatial covariance matrices as if the input signal is a delta ir is the default shape given by arrays.paths (num_ls, num_mics, ir_len)
spatial_cov_freq(rir_freq)	Calculates spatial covariance matrices from frequency domain room impulse responses
spatial_cov_freq_kernel(krr_params, pos_mic, ...)	Calculates spatial covariance matrices in the frequency domain using kernel interpolation
spatial_cov_freq_superpos(Hb, Hd[, d])	Calculates spatial covariance matrices from transfer function matrices
sum_pow_of_mat(bf_mat)	bf_mat is the beamformer matrix obtained from semidefinite relaxation,
sum_pow_of_vec(bf_vec)
sum_weighted_pow(bf_vec, weighting_mat)
szc_transform_mwf(Rb, Rd[, mu])	Calculates the linear transformation to apply to loudspeaker signals to obtain sound zones.
szc_transform_mwf_gevd(Rb, Rd, rank[, mu])	Calculates the linear transformation to apply to loudspeaker signals to obtain sound zones.
vast(Rb, Rd, rb, mu, rank[, reg])	Frequency domain variable span trade-off filter for sound zone control

Classes

PressureMatchingWOLA(audio_src, Hv, Hc, ...)

Sound field reproduction with pressure matching in the WOLA domain